CA2062508A1 - Pumping system for intravenous administration of a secondary treatment fluid - Google Patents
Pumping system for intravenous administration of a secondary treatment fluidInfo
- Publication number
- CA2062508A1 CA2062508A1 CA002062508A CA2062508A CA2062508A1 CA 2062508 A1 CA2062508 A1 CA 2062508A1 CA 002062508 A CA002062508 A CA 002062508A CA 2062508 A CA2062508 A CA 2062508A CA 2062508 A1 CA2062508 A1 CA 2062508A1
- Authority
- CA
- Canada
- Prior art keywords
- fluid
- primary
- pumping
- recited
- treatment fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
- A61M5/148—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags
- A61M5/152—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags pressurised by contraction of elastic reservoirs
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
ABSTRACT
A pumping system is provided for administering a secondary treatment fluid to a patient intravenously in cooperation with a primary treatment fluid administration set already in place. The system includes a self-contained pumping unit having a pumping chamber and a secondary treatment fluid reservoir integral therewith. A secondary fluid line extending from the unit merges with a primary fluid line at a fitting for delivery of the fluids carried in the primary and secondary lines to the patient via a combined IV
line.
10700.158
A pumping system is provided for administering a secondary treatment fluid to a patient intravenously in cooperation with a primary treatment fluid administration set already in place. The system includes a self-contained pumping unit having a pumping chamber and a secondary treatment fluid reservoir integral therewith. A secondary fluid line extending from the unit merges with a primary fluid line at a fitting for delivery of the fluids carried in the primary and secondary lines to the patient via a combined IV
line.
10700.158
Description
20~2~08 l FIELD OF THE INVENTION
2 The present invention pertains to IV administration sets
3 which are useful for infusing treatment fluids to a patient.
4 More particularly, the present invention pertains to a s secondary treatment fluid administration set which operates in 6 cooperation with a primary treatment fluid administration set.
7 The present invention is particularly, but not exclusively, 8 useful for the IV infusion of fluid from the secondary set 9 which is controllable independent of the primary set.
BACKGROUND OF THE INVENTION
12 Intravenous (IV) administration sets which are useful for 13 infusing medical treatment fluids to a patient are well known 14 and widely used. In the most simple configuration, an IV
administration set includes a fluid source, an IV line 16 connecting the fluid source to the patient, and a device 17 operatively associated with the IV line to influence the rate 18 of fluid flow to the patient. In more advanced 19 configurations, two sets are placed side by side to deliver two different medical fluids to the patient intermittently.
21 One such dual delivery system is conventionally termed a 22 "piggyback" system wherein a primary set delivers a primary 23 fluid and a secondary set delivers a secondary fluid to the 24 patient sequence. The source of both the primary and 2s secondary fluids, e.g. bags or bottles, are hung above the 26 patient and linked to the patient by a network of tubing and 1 valves which culminate in a common IV line to the patient.
2 The primary and secondary fluid sources are positioned at a 3 height differential so that delivery of one fluid is favored 4 over the other, thereby imposing a pattern of sequential fluid ~s delivery on the system.
6 The piggyback system may also include a device which 7 regulates the rate of fluid flow to the patient. Flow rats 8 control devices for the piggyback system are characterized as 9 either pumps or controllers. Controllers rely on gravity for the flow of fluid through the system, while pumps exert an electro-mechanical force on the fluid to establish a fluid 12 flow. U.S. Patent 4,533,347 exemplifies a conventional 13 piggyback system which employs a controller to regulate the 14 flow of fluids to the patient. The controller is positioned downstream of the fluid sources on the secondary fluid lins 16 and the combined fluid line to regulate flow in both lines 17 simultaneously.
18 Although effective, conventional piggyback systems have 19 nevertheless been found to be somewhat restrictive and cumbersome in that they rely on a check valve and the height 21 differential of the fluid sources to ensure the desired 22 delivery sequence of the treatment fluids despite the 23 concurrent use of a pump or controller. Accordingly, it is an 24 object of the present invention to provide a secondary 2s treatment fluid administration system which is operable in 26 cooperation with a conventional primary treatment fluid 2~S25~8 l administration set, yet which is not restricted to only a 2 sequential mode of fluid delivery to the patient. It is 3 further an object of the present invention to diminish 4 reliance on the height differential of the fluid sources as a mechanism for sequential fluid delivery. It is another object 6 of the present invention to provide a secondary treatment 7 fluid administration system which provides a driving force 8 other than gravity or electro-mechanical pumping to convey 9 fluid through the system. A final object of the present invention is to provide control of the secondary treatment fluid administration system by means independent of the 12 primary set.
The present invention is a pumping system for 16 administering a secondary treatment fluid to a patient 17 intravenously wherein the system is structured to perform in 18 cooperation with a primary treatment fluid administration set 9 already in place. The present secondary treatment fluid pumping system comprises a self-contained pumping unit having ~O ~ 21 a pumping chamber and a fluid reservoir integrated into a ~'~o-~ 22 single compartment. A secondary fluid line extends from the 23 pumping unit and joins with a primary fluid line of the ,~ 3~ 24 primary set at a connector fitting. The fitting merges the two lines into an IV line which proceeds to the patient for 26 intravenous delivery of the treatment fluids carried therein.
20~2~08 l The junction of the primary and secondary fluid lines is 2 downstream of any flow control devices on the primary fluid 3 line. Control of the secondary pumping system is achieved 4 independent of the primary set by means including a S selectively positionable restriction mechanism on, the 6 secondary f luid line. A control assembly having a 7 microprocessor in electrical communication with the 8 restriction mechanism is provided for performing the control 9 function of the system automatically. The control assembly ~0 includes push buttons for entering control commands to the 11 microprocessor and a display for displaying operational data.
12 Thus, the restriction mechanism is responsive to control 13 commands inputted by the operator and stored in the 14 microprocessor. When the restriction mechanism is in an extended position, the secondary fluid line is closed. When 16 the restriction mechanism is in a retracted position the 17 secondary fluid line is open and the secondary fluid is 18 delivered to the patient. It is apparent that the 9 microprocessor can be programmed so that at a predetermined point in time secondary fluid can be delivered to the patient 21 for a predetermined duration and at the end of the 22 predetermined duration fluid delivery can be automatically 23 terminated.
2~ Although the secondary treatment fluid pumping system is independently controllable, it is nevertheless designed to 26 operate in concert with the primary set. Accordingly, the ~Ofi?~ O~
l secondary pumping system is portable so that it may be placed 2 in close proximity to the primary set during operation. The 3 secondary pumping system is provided with means for removably 4 affixing it to the stand of the primary set, or alternatively the system is provided with means for removably affixing it 6 directly to the primary set. The pumping unit is preferably 7 prefilled and presealed with a predetermined volume of 8 treatment fluid to minimize fluid handling by the operator.
9 The pumping unit can be fabricated from disposable materials thereby eliminating risks associated with refilling and reuse of the unit.
12 The secondary pumping system may be configured with a 13 single pumping unit as described above or with a plurality of 14 pumping units which operate in parallel. Each pumping unit of the multi-unit system has a secondary fluid line which 16 connects into the system outlet line across a manifold.
17 Control of the multi-unit system may be provided by a control 18 assembly analogous to the above-described control assembly for the single pumping unit system.
C 20 The present invention is additionally a method for ~ 21 pumping secondary treatment fluid to a patient for intravenous ny 2 ~ ~ infusion in cooperation with administration of a primary 23 treatment fluid to the patient. The method comprises pumping 24 the secondary treatment fluid from a reservoir which is structurally integral with the pumping chamber into a 26 secondary fluid line. The secondary fluid is displaced 20S2~08 1 through the secondary fluid line to a fitting which 2 continuously merges the secondary fluid line and a primary 3 fluid line into an IV line. The secondary fluid is then 4 delivered to the patient intravenously across the IV line.
The operator may either choose to deliver the secondary and 6 primary fluids to the patient sequentially or deliver the 7 secondary fluid to the patient coincident with simultaneous 8 delivery of the primary fluid.
9 The novel features of this invention, as well as the invention itself, both as to its structure and its operation, will be best understood from the accompanying drawings, taken 12 in conjunction with the accompanying description,`in which 13 similar reference characters refer to similar parts, and in 14 which:
17 Figure l is a perspective view of the secondary treatment 18 fluid pumping system;
19 Figure 2 is a side view of an embodiment for mounting the 2~ secondary treatment fluid pumping system;
21 Figure 3 is a cross sectional view of the secondary 22 treatment fluid pumping system as seen along the line 2-2 in 23 Figure l with selected components shown schematically for 24 clarity;
Figure 4 is a detailed cross sectional view of the 26 pumping chamber of the present invention as seen in Figure 3;
20~2~08 I Pigure 5 is a top plan view of an embodiment for an 2 occluder and occluder drive mechanism for the present 3 invention shown in operative association with an IV tube; and 4 Figure 6 is a perspective view of a second embodiment of the secondary treatment fluid pumping system.
8Referring initially to Figure l, the pumping system of 9 the present invention for intravenously administering a secondary treatment fluid is shown assembled and generally ll designated as apparatus l0. Apparatus l0 is structured to 12 perform in cooperation with a conventional primary`treatment 13 fluid administration set generally designated 12.
14 Accordingly, apparatus l0 is shown mounted on an IV pole 14 of primary set 12 in close proximity thereto. Primary set 12 16 comprises a hangable primary treatment fluid bottle 16, a 17 primary fluid control unit 18, which is typically either a 18 controller or a pump, and two portions of tubing 20, 22.
9 Upper tubing 20 leads from bottle 16 to primary control unit 2018 and lower tubing 22 leads from bottle 16 to a connector 21fitting 24 of apparatus l0 which merges lower tubing 22 with 22an outlet tube 26 of apparatus l0 into a unified IV tube 28 to 23 the patient.
24In addition to fitting 24 and outlet tube 26, apparatus further comprises a housing 30 which houses a self-26 contained pumping unit 32 and a control assembly 34. Housing 2062~08 1 ~0 and its contents are relatively small and lightweight which 2 renders them substantially portable for positioning near or 3 adjacent associated primary set 12. As an alternative to the 4 pole mounting of Figure 1, Figure 2 shows apparatus 10 s mountable directly onto control unit 18 of primary set.12 by a releasable fastening means such as a pair of engagable 7 Velcro strips 36, 38 affixed to control unit 18 and housing 30 8 respectively.
9 Referring back to Figure 1, outlet tube 26, fitting 24, and IV tube 28 provide a continuous fluid pathway to the Il patient. Fitting 24 is preferably a conventional formed 12 connector termed a Y-site connection which enables free l3 unimpeded flow from outlet tube 26 and lower tubing 22 into IV
14 tube 28. Housing 30 has on its face a visual display 40 and tactile push buttons 42 which enable operator interaction with 16 control assembly 34. Housing 30 is further formed with a 17 receptacle 44 shaped to receive self-contained pumping unit 32 18 and a slot 46 shaped to accommodate outlet tube 26 exiting a n 19 port connector 35 on unit 32 and a flow restrictor means, such as an occluder 48, which is shown mounted in housing 30.
- 21 In Figure 3 it will be seen that apparatus 10 includes a n ~0~ microprocessor S0 which is mounted inside housing 30 in a 23 manner well known in the pertinent art. Figure 3 also shows that microprocessor 50 is electrically connected to visual display 40 on housing 30 via electrical line 52 and 26 electrically connected to tactile push buttons 42 on housing 2062~08 l 30 via electrical line 54. Further, microprocessor S0 is 2 electrically connected to an occluder drive mechanism 56 via 3 an electrical line 58.
4 Pumping unit 32 of apparatus '0 is, perhaps, best seen s with reference to Figure 4. There it will be seen. that 6 pumping unit 32 includes a plate 60 which covers a cup 62. A
7 stretchable membrane 64 and a liner 66 enclose an impeller 8 plate 68 and, together, create an expandable and contractible 9 fluid pumping chamber 70 between liner 66 and plate 60.
Pumping chamber 70 is preferably prefilled and presealed with Il the secondary treatment fluid, and accordingly functions 12 simultaneously as a fluid reservoir for the secondary 13 treatment fluid.
14 Figure 4 shows stretchable membrane 64 and liner 66 are attached between plate 60 and cup 62 at the juncture 72 16 between liner 66 and cup 62. For purposes of the present 17 invention, stretchable membrane 64 can be made of any suitable 18 elastomeric material which will urge impeller plate 68 toward n 19 and into contact with the plate 60. Further, liner 56 can be made of any suitable material which is chemically and ~ 21 biologically compatible with the secondary treatment fluid ny ~0 medicament to be introduced into pumping chamber 70. The size 23 of impeller plate 58 can vary to some degree, but it should be 24 sufficiently large to maintain some stretch in membrane 64 and 2s keep the force from membrane 64 on impeller plate 68 in its 26 linear region, even when pumping chamber 70 has been 20fi2~8 1 completely collapsed. It is to be appreciated by one of 2 ordinary skill in the art that with some design modification 3 impeller plate 68 can be eliminated from pumping unit 32 and 4 membrane 64 can be relied on as the sole pumping force on the S secondary treatment fluid.
6Figure 4 also shows that plate 60 of pumping unit 32 is 7 formed with an air vent 74 which is covered by a hydrophobic 8 layer 76. Accordingly, when pumping chamber 70 is filled with 9 fluid, air in chamber 70 can escape through air vent 74 without also losing fluid from the chamber 70. Plate 60 of 11 pumping unit 32 is also formed with a fluid port 78 which is 12 surrounded by port connector 35. A valve 80 is located 13 between plate 60 and port connector 35 which is urged by a 14spring 82 against the shoulder 84 of port connector 35. With this combination, fluid can be injected into the chamber 70 16 while valve 80 is depressed and, after chamber 70 has been 17 filled, valve 80 will prevent pumping of fluid from the 18 chamber 70 until port connector 35 is appropriately connected 19 with outlet tube 26. It will be appreciated that various valving arrangements for pumping chamber 70 will suffice for 21 purposes of the present invention.
22occluder drive mechanism 56 is shown in Figure 5 to 28 include a drive shaft 86 which is mounted on housing for 4 rotation by a motor (not shown). A cam 88 is fixedly attached to the drive shaft 86 for rotation with the drive shaft in the 26 direction indicated by arrow 90. A pivot pin 92 is also 20~2~-ag l mounted on housing 30 and an actuator arm 94 is attached to 2 pin 92. Consequently, as cam 88 is rotated to urge against 3 actuator arm 94, actuator arm 94 will pivot about the 4 rotational axis of pivot pin 92. An end 96 of actuator arm is operatively engaged with a shaft 98 for operation of the 6 occluder drive mechanism 56. Specifically, a bearing 100 and 7 a bearing 102 are each mounted on housing 30 and shaft 98 is 8 slidably mounted on bearings 100, 102. Further, shaft 98 is 9 formed with a retainer ring 104 and a spring 106 is positioned around shaft 98 between the retainer ring 104 and the bearing 100. Occluder 48 is mounted on the end of shaft 98 as shown l2 and will reciprocate with the movement of shaft 98.
13 Figure 5 also shows that slot 46 creates a platen 108 and 14 includes a flexible cover 110. As intended for the present invention, outlet tube 26 is positioned in slot 46 between I6 platen 108 and flexible cover 110. As shown, occluder 48 is 17 positioned against flexible cover 110 on the side of cover 110 18 opposite outlet tube 26. With this structure, a rotation of n 19 drive shaft 86 urges cam 88 against arm 94 to pivot the arm 94 ¢ 20 around pivot pin 92 and into the position shown for arm 94'.~n ~ ~ 21 As a result, end 96 of arm 94 urges against the abutment 112 ~ >~o~ 22 on shaft 98 to move shaft 98 in the direction of arrow 114 and Y g~gOO 23 against the action of spring 106. Consequently, occluder 48r 24 moves into the position shown for occluder 48' and the outlet 2 2s tube 26 positioned in slot 46 will be opened for fluid flow.
26 Further, rotation of shaft 86 will release shaft 98 from the 2062~0s 1 influence of actuator arm 94 and allow spring 106 to urge 2 occluder 48 into contact with tube 26 to prevent fluid flow 3 through outlet tube 26.
OPERATION
6 In the operation of the secondary pumping system of the 7 present invention, the operator first positions apparatus l0 8 in proximity to primary set 12, such as on the IV pole 14.
9 The differential height between primary fluid bottle 16 and apparatus l0 is immaterial. Accordingly, the differential height between them may be positive, negative or zero. -12 A pumping unit 32, which has preferably been prefilled 13 with a secondary treatment fluid to be infused, is then 14 provided. Prefilling is typically performed at a remote site, e.g. the pharmacy of the hospital, and pumping unit 32 is 16 transported to the location where the treatment fluid is to be 17 infused to the patient. Specifically, prefilling is performed 18 by attaching a syringe or some other device for pumping fluid 19 to port connector 35 and injecting the secondary treatment ~ 20 fluid into reservoir/pumping chamber 70 of unit 32. As fluid 0 O ~ 21 is so injected impeller plate 68 is distanced from the plate ~o~ 22 60 and chamber 70 expands under the influence of the injected 23 fluid to stretch membrane 64. During the filling of chamber <~ 24 70 any air in chamber 70 is vented through air vent 74. The 25 result is that chamber 70 is filled only with the treatment 26 fluid to be infused. As will be appreciated by the skilled l artisan, several prefilled pumping units 32 can be stored on 2 site before use, each unit 32 filled with a particular 3 medicament which can be different from the medicaments used to 4 fill the other pumping units 32.
Pumping unit 32 is connected in fluid communication with 6 an IV tube 2~ by attaching one end of IV tube 2~ and one end 7 of outlet tube 26 to Y-site connector fitting 24. The other 8 end of outlet tube 26 is connected to port connector 35 which 9 is a fixed calibrated orifice providing a fixed flow rate therethrough. The pumping unit 32 is then positioned in receptacle 44 and a portion of the outlet tube 26 which 12 extends from port connector 35 is positioned in slot 46 for 13 operative contact with occluder 48. The free end of IV tube 14 28 can then be attached to the patient. Importantly, upon placement of outlet tube 26 in slot 46 and into contact with 16 occluder 48, occluder 48 initially occludes outlet tube 26.
17 Microprocessor 40 in housing 30 is programmed by the 18 operator using tactile push buttons 42 of control assembly 34.
19 According to this program, occluder 4~ is activated to open outlet tube 26 at a preselected time and for a predetermined 21 duration. Once past occluder 48, the secondary treatment z fluid has an unobstructed flowpath to the patient across tubes 26, 28 and connector fitting 24.
24 Figure 6 shows a second embodiment of the present invention wherein the secondary treatment fluid pumping system 26 designated as apparatus 210 comprises a plurality of the ~2~8 I above-described pumping units 232a, 232b and assaciated outlet 2 tubes 226, occluders 248, and control assemblies 234 contained 3 within a single housing 230. Apparatus 210 is likewise 4 designed to operate in cooperation with primary set 12.
Secondary treatment fluid exit pumping units 232 into outlet 6 tubes 226 which discharge into a combined tube 227 across a 7 manifold 229. Combined tube 227 feeds into IV tube 28 across 8 connector fitting 24 in the same manner as described above 9 with respect to apparatus lO.
Although each tactile push button 242, each visual 11 display 240, and each occluder 248 is separately operative 12 through a central microprocessor (not shown) in housing 230 to 13 independently control each pumping unit 232, the central 14 microprocessor is nevertheless capable of coordinating the operation of a plurality of pumping units 232 and their 16 respective occluders 248 to sequence their infusion of medical 17 treatment fluids to the patient in accordance with a 18 predetermined program. The central microprocessor is 19 programmed by the operator via push buttons 242 to control the initiation and duration of infusion from a plurality of 21 pumping units 232 mounted in housing 230. In this way, the 22 multl-unit system provides a procedure for the timed 23 sequencing of a plurality of prefilled pumping units 232.
24 While the particular secondary treatment fluid pumping system for infusing IV fluids to a patient as herein shown and 26 disclosed in detail is fully capable of obtaining the objects 2062~08 l and providing the advantages herein before stated, it is to be 2 understood that it is merely illustrative of the presently 3 preferred embodiments of the invention and that no limitations 4 are intended to the details of construction or design herein 6 shown other than as described in the appended claims. .
n 19 6 ~ ~U ~1 ~ 9 ~g~ 23
7 The present invention is particularly, but not exclusively, 8 useful for the IV infusion of fluid from the secondary set 9 which is controllable independent of the primary set.
BACKGROUND OF THE INVENTION
12 Intravenous (IV) administration sets which are useful for 13 infusing medical treatment fluids to a patient are well known 14 and widely used. In the most simple configuration, an IV
administration set includes a fluid source, an IV line 16 connecting the fluid source to the patient, and a device 17 operatively associated with the IV line to influence the rate 18 of fluid flow to the patient. In more advanced 19 configurations, two sets are placed side by side to deliver two different medical fluids to the patient intermittently.
21 One such dual delivery system is conventionally termed a 22 "piggyback" system wherein a primary set delivers a primary 23 fluid and a secondary set delivers a secondary fluid to the 24 patient sequence. The source of both the primary and 2s secondary fluids, e.g. bags or bottles, are hung above the 26 patient and linked to the patient by a network of tubing and 1 valves which culminate in a common IV line to the patient.
2 The primary and secondary fluid sources are positioned at a 3 height differential so that delivery of one fluid is favored 4 over the other, thereby imposing a pattern of sequential fluid ~s delivery on the system.
6 The piggyback system may also include a device which 7 regulates the rate of fluid flow to the patient. Flow rats 8 control devices for the piggyback system are characterized as 9 either pumps or controllers. Controllers rely on gravity for the flow of fluid through the system, while pumps exert an electro-mechanical force on the fluid to establish a fluid 12 flow. U.S. Patent 4,533,347 exemplifies a conventional 13 piggyback system which employs a controller to regulate the 14 flow of fluids to the patient. The controller is positioned downstream of the fluid sources on the secondary fluid lins 16 and the combined fluid line to regulate flow in both lines 17 simultaneously.
18 Although effective, conventional piggyback systems have 19 nevertheless been found to be somewhat restrictive and cumbersome in that they rely on a check valve and the height 21 differential of the fluid sources to ensure the desired 22 delivery sequence of the treatment fluids despite the 23 concurrent use of a pump or controller. Accordingly, it is an 24 object of the present invention to provide a secondary 2s treatment fluid administration system which is operable in 26 cooperation with a conventional primary treatment fluid 2~S25~8 l administration set, yet which is not restricted to only a 2 sequential mode of fluid delivery to the patient. It is 3 further an object of the present invention to diminish 4 reliance on the height differential of the fluid sources as a mechanism for sequential fluid delivery. It is another object 6 of the present invention to provide a secondary treatment 7 fluid administration system which provides a driving force 8 other than gravity or electro-mechanical pumping to convey 9 fluid through the system. A final object of the present invention is to provide control of the secondary treatment fluid administration system by means independent of the 12 primary set.
The present invention is a pumping system for 16 administering a secondary treatment fluid to a patient 17 intravenously wherein the system is structured to perform in 18 cooperation with a primary treatment fluid administration set 9 already in place. The present secondary treatment fluid pumping system comprises a self-contained pumping unit having ~O ~ 21 a pumping chamber and a fluid reservoir integrated into a ~'~o-~ 22 single compartment. A secondary fluid line extends from the 23 pumping unit and joins with a primary fluid line of the ,~ 3~ 24 primary set at a connector fitting. The fitting merges the two lines into an IV line which proceeds to the patient for 26 intravenous delivery of the treatment fluids carried therein.
20~2~08 l The junction of the primary and secondary fluid lines is 2 downstream of any flow control devices on the primary fluid 3 line. Control of the secondary pumping system is achieved 4 independent of the primary set by means including a S selectively positionable restriction mechanism on, the 6 secondary f luid line. A control assembly having a 7 microprocessor in electrical communication with the 8 restriction mechanism is provided for performing the control 9 function of the system automatically. The control assembly ~0 includes push buttons for entering control commands to the 11 microprocessor and a display for displaying operational data.
12 Thus, the restriction mechanism is responsive to control 13 commands inputted by the operator and stored in the 14 microprocessor. When the restriction mechanism is in an extended position, the secondary fluid line is closed. When 16 the restriction mechanism is in a retracted position the 17 secondary fluid line is open and the secondary fluid is 18 delivered to the patient. It is apparent that the 9 microprocessor can be programmed so that at a predetermined point in time secondary fluid can be delivered to the patient 21 for a predetermined duration and at the end of the 22 predetermined duration fluid delivery can be automatically 23 terminated.
2~ Although the secondary treatment fluid pumping system is independently controllable, it is nevertheless designed to 26 operate in concert with the primary set. Accordingly, the ~Ofi?~ O~
l secondary pumping system is portable so that it may be placed 2 in close proximity to the primary set during operation. The 3 secondary pumping system is provided with means for removably 4 affixing it to the stand of the primary set, or alternatively the system is provided with means for removably affixing it 6 directly to the primary set. The pumping unit is preferably 7 prefilled and presealed with a predetermined volume of 8 treatment fluid to minimize fluid handling by the operator.
9 The pumping unit can be fabricated from disposable materials thereby eliminating risks associated with refilling and reuse of the unit.
12 The secondary pumping system may be configured with a 13 single pumping unit as described above or with a plurality of 14 pumping units which operate in parallel. Each pumping unit of the multi-unit system has a secondary fluid line which 16 connects into the system outlet line across a manifold.
17 Control of the multi-unit system may be provided by a control 18 assembly analogous to the above-described control assembly for the single pumping unit system.
C 20 The present invention is additionally a method for ~ 21 pumping secondary treatment fluid to a patient for intravenous ny 2 ~ ~ infusion in cooperation with administration of a primary 23 treatment fluid to the patient. The method comprises pumping 24 the secondary treatment fluid from a reservoir which is structurally integral with the pumping chamber into a 26 secondary fluid line. The secondary fluid is displaced 20S2~08 1 through the secondary fluid line to a fitting which 2 continuously merges the secondary fluid line and a primary 3 fluid line into an IV line. The secondary fluid is then 4 delivered to the patient intravenously across the IV line.
The operator may either choose to deliver the secondary and 6 primary fluids to the patient sequentially or deliver the 7 secondary fluid to the patient coincident with simultaneous 8 delivery of the primary fluid.
9 The novel features of this invention, as well as the invention itself, both as to its structure and its operation, will be best understood from the accompanying drawings, taken 12 in conjunction with the accompanying description,`in which 13 similar reference characters refer to similar parts, and in 14 which:
17 Figure l is a perspective view of the secondary treatment 18 fluid pumping system;
19 Figure 2 is a side view of an embodiment for mounting the 2~ secondary treatment fluid pumping system;
21 Figure 3 is a cross sectional view of the secondary 22 treatment fluid pumping system as seen along the line 2-2 in 23 Figure l with selected components shown schematically for 24 clarity;
Figure 4 is a detailed cross sectional view of the 26 pumping chamber of the present invention as seen in Figure 3;
20~2~08 I Pigure 5 is a top plan view of an embodiment for an 2 occluder and occluder drive mechanism for the present 3 invention shown in operative association with an IV tube; and 4 Figure 6 is a perspective view of a second embodiment of the secondary treatment fluid pumping system.
8Referring initially to Figure l, the pumping system of 9 the present invention for intravenously administering a secondary treatment fluid is shown assembled and generally ll designated as apparatus l0. Apparatus l0 is structured to 12 perform in cooperation with a conventional primary`treatment 13 fluid administration set generally designated 12.
14 Accordingly, apparatus l0 is shown mounted on an IV pole 14 of primary set 12 in close proximity thereto. Primary set 12 16 comprises a hangable primary treatment fluid bottle 16, a 17 primary fluid control unit 18, which is typically either a 18 controller or a pump, and two portions of tubing 20, 22.
9 Upper tubing 20 leads from bottle 16 to primary control unit 2018 and lower tubing 22 leads from bottle 16 to a connector 21fitting 24 of apparatus l0 which merges lower tubing 22 with 22an outlet tube 26 of apparatus l0 into a unified IV tube 28 to 23 the patient.
24In addition to fitting 24 and outlet tube 26, apparatus further comprises a housing 30 which houses a self-26 contained pumping unit 32 and a control assembly 34. Housing 2062~08 1 ~0 and its contents are relatively small and lightweight which 2 renders them substantially portable for positioning near or 3 adjacent associated primary set 12. As an alternative to the 4 pole mounting of Figure 1, Figure 2 shows apparatus 10 s mountable directly onto control unit 18 of primary set.12 by a releasable fastening means such as a pair of engagable 7 Velcro strips 36, 38 affixed to control unit 18 and housing 30 8 respectively.
9 Referring back to Figure 1, outlet tube 26, fitting 24, and IV tube 28 provide a continuous fluid pathway to the Il patient. Fitting 24 is preferably a conventional formed 12 connector termed a Y-site connection which enables free l3 unimpeded flow from outlet tube 26 and lower tubing 22 into IV
14 tube 28. Housing 30 has on its face a visual display 40 and tactile push buttons 42 which enable operator interaction with 16 control assembly 34. Housing 30 is further formed with a 17 receptacle 44 shaped to receive self-contained pumping unit 32 18 and a slot 46 shaped to accommodate outlet tube 26 exiting a n 19 port connector 35 on unit 32 and a flow restrictor means, such as an occluder 48, which is shown mounted in housing 30.
- 21 In Figure 3 it will be seen that apparatus 10 includes a n ~0~ microprocessor S0 which is mounted inside housing 30 in a 23 manner well known in the pertinent art. Figure 3 also shows that microprocessor 50 is electrically connected to visual display 40 on housing 30 via electrical line 52 and 26 electrically connected to tactile push buttons 42 on housing 2062~08 l 30 via electrical line 54. Further, microprocessor S0 is 2 electrically connected to an occluder drive mechanism 56 via 3 an electrical line 58.
4 Pumping unit 32 of apparatus '0 is, perhaps, best seen s with reference to Figure 4. There it will be seen. that 6 pumping unit 32 includes a plate 60 which covers a cup 62. A
7 stretchable membrane 64 and a liner 66 enclose an impeller 8 plate 68 and, together, create an expandable and contractible 9 fluid pumping chamber 70 between liner 66 and plate 60.
Pumping chamber 70 is preferably prefilled and presealed with Il the secondary treatment fluid, and accordingly functions 12 simultaneously as a fluid reservoir for the secondary 13 treatment fluid.
14 Figure 4 shows stretchable membrane 64 and liner 66 are attached between plate 60 and cup 62 at the juncture 72 16 between liner 66 and cup 62. For purposes of the present 17 invention, stretchable membrane 64 can be made of any suitable 18 elastomeric material which will urge impeller plate 68 toward n 19 and into contact with the plate 60. Further, liner 56 can be made of any suitable material which is chemically and ~ 21 biologically compatible with the secondary treatment fluid ny ~0 medicament to be introduced into pumping chamber 70. The size 23 of impeller plate 58 can vary to some degree, but it should be 24 sufficiently large to maintain some stretch in membrane 64 and 2s keep the force from membrane 64 on impeller plate 68 in its 26 linear region, even when pumping chamber 70 has been 20fi2~8 1 completely collapsed. It is to be appreciated by one of 2 ordinary skill in the art that with some design modification 3 impeller plate 68 can be eliminated from pumping unit 32 and 4 membrane 64 can be relied on as the sole pumping force on the S secondary treatment fluid.
6Figure 4 also shows that plate 60 of pumping unit 32 is 7 formed with an air vent 74 which is covered by a hydrophobic 8 layer 76. Accordingly, when pumping chamber 70 is filled with 9 fluid, air in chamber 70 can escape through air vent 74 without also losing fluid from the chamber 70. Plate 60 of 11 pumping unit 32 is also formed with a fluid port 78 which is 12 surrounded by port connector 35. A valve 80 is located 13 between plate 60 and port connector 35 which is urged by a 14spring 82 against the shoulder 84 of port connector 35. With this combination, fluid can be injected into the chamber 70 16 while valve 80 is depressed and, after chamber 70 has been 17 filled, valve 80 will prevent pumping of fluid from the 18 chamber 70 until port connector 35 is appropriately connected 19 with outlet tube 26. It will be appreciated that various valving arrangements for pumping chamber 70 will suffice for 21 purposes of the present invention.
22occluder drive mechanism 56 is shown in Figure 5 to 28 include a drive shaft 86 which is mounted on housing for 4 rotation by a motor (not shown). A cam 88 is fixedly attached to the drive shaft 86 for rotation with the drive shaft in the 26 direction indicated by arrow 90. A pivot pin 92 is also 20~2~-ag l mounted on housing 30 and an actuator arm 94 is attached to 2 pin 92. Consequently, as cam 88 is rotated to urge against 3 actuator arm 94, actuator arm 94 will pivot about the 4 rotational axis of pivot pin 92. An end 96 of actuator arm is operatively engaged with a shaft 98 for operation of the 6 occluder drive mechanism 56. Specifically, a bearing 100 and 7 a bearing 102 are each mounted on housing 30 and shaft 98 is 8 slidably mounted on bearings 100, 102. Further, shaft 98 is 9 formed with a retainer ring 104 and a spring 106 is positioned around shaft 98 between the retainer ring 104 and the bearing 100. Occluder 48 is mounted on the end of shaft 98 as shown l2 and will reciprocate with the movement of shaft 98.
13 Figure 5 also shows that slot 46 creates a platen 108 and 14 includes a flexible cover 110. As intended for the present invention, outlet tube 26 is positioned in slot 46 between I6 platen 108 and flexible cover 110. As shown, occluder 48 is 17 positioned against flexible cover 110 on the side of cover 110 18 opposite outlet tube 26. With this structure, a rotation of n 19 drive shaft 86 urges cam 88 against arm 94 to pivot the arm 94 ¢ 20 around pivot pin 92 and into the position shown for arm 94'.~n ~ ~ 21 As a result, end 96 of arm 94 urges against the abutment 112 ~ >~o~ 22 on shaft 98 to move shaft 98 in the direction of arrow 114 and Y g~gOO 23 against the action of spring 106. Consequently, occluder 48r 24 moves into the position shown for occluder 48' and the outlet 2 2s tube 26 positioned in slot 46 will be opened for fluid flow.
26 Further, rotation of shaft 86 will release shaft 98 from the 2062~0s 1 influence of actuator arm 94 and allow spring 106 to urge 2 occluder 48 into contact with tube 26 to prevent fluid flow 3 through outlet tube 26.
OPERATION
6 In the operation of the secondary pumping system of the 7 present invention, the operator first positions apparatus l0 8 in proximity to primary set 12, such as on the IV pole 14.
9 The differential height between primary fluid bottle 16 and apparatus l0 is immaterial. Accordingly, the differential height between them may be positive, negative or zero. -12 A pumping unit 32, which has preferably been prefilled 13 with a secondary treatment fluid to be infused, is then 14 provided. Prefilling is typically performed at a remote site, e.g. the pharmacy of the hospital, and pumping unit 32 is 16 transported to the location where the treatment fluid is to be 17 infused to the patient. Specifically, prefilling is performed 18 by attaching a syringe or some other device for pumping fluid 19 to port connector 35 and injecting the secondary treatment ~ 20 fluid into reservoir/pumping chamber 70 of unit 32. As fluid 0 O ~ 21 is so injected impeller plate 68 is distanced from the plate ~o~ 22 60 and chamber 70 expands under the influence of the injected 23 fluid to stretch membrane 64. During the filling of chamber <~ 24 70 any air in chamber 70 is vented through air vent 74. The 25 result is that chamber 70 is filled only with the treatment 26 fluid to be infused. As will be appreciated by the skilled l artisan, several prefilled pumping units 32 can be stored on 2 site before use, each unit 32 filled with a particular 3 medicament which can be different from the medicaments used to 4 fill the other pumping units 32.
Pumping unit 32 is connected in fluid communication with 6 an IV tube 2~ by attaching one end of IV tube 2~ and one end 7 of outlet tube 26 to Y-site connector fitting 24. The other 8 end of outlet tube 26 is connected to port connector 35 which 9 is a fixed calibrated orifice providing a fixed flow rate therethrough. The pumping unit 32 is then positioned in receptacle 44 and a portion of the outlet tube 26 which 12 extends from port connector 35 is positioned in slot 46 for 13 operative contact with occluder 48. The free end of IV tube 14 28 can then be attached to the patient. Importantly, upon placement of outlet tube 26 in slot 46 and into contact with 16 occluder 48, occluder 48 initially occludes outlet tube 26.
17 Microprocessor 40 in housing 30 is programmed by the 18 operator using tactile push buttons 42 of control assembly 34.
19 According to this program, occluder 4~ is activated to open outlet tube 26 at a preselected time and for a predetermined 21 duration. Once past occluder 48, the secondary treatment z fluid has an unobstructed flowpath to the patient across tubes 26, 28 and connector fitting 24.
24 Figure 6 shows a second embodiment of the present invention wherein the secondary treatment fluid pumping system 26 designated as apparatus 210 comprises a plurality of the ~2~8 I above-described pumping units 232a, 232b and assaciated outlet 2 tubes 226, occluders 248, and control assemblies 234 contained 3 within a single housing 230. Apparatus 210 is likewise 4 designed to operate in cooperation with primary set 12.
Secondary treatment fluid exit pumping units 232 into outlet 6 tubes 226 which discharge into a combined tube 227 across a 7 manifold 229. Combined tube 227 feeds into IV tube 28 across 8 connector fitting 24 in the same manner as described above 9 with respect to apparatus lO.
Although each tactile push button 242, each visual 11 display 240, and each occluder 248 is separately operative 12 through a central microprocessor (not shown) in housing 230 to 13 independently control each pumping unit 232, the central 14 microprocessor is nevertheless capable of coordinating the operation of a plurality of pumping units 232 and their 16 respective occluders 248 to sequence their infusion of medical 17 treatment fluids to the patient in accordance with a 18 predetermined program. The central microprocessor is 19 programmed by the operator via push buttons 242 to control the initiation and duration of infusion from a plurality of 21 pumping units 232 mounted in housing 230. In this way, the 22 multl-unit system provides a procedure for the timed 23 sequencing of a plurality of prefilled pumping units 232.
24 While the particular secondary treatment fluid pumping system for infusing IV fluids to a patient as herein shown and 26 disclosed in detail is fully capable of obtaining the objects 2062~08 l and providing the advantages herein before stated, it is to be 2 understood that it is merely illustrative of the presently 3 preferred embodiments of the invention and that no limitations 4 are intended to the details of construction or design herein 6 shown other than as described in the appended claims. .
n 19 6 ~ ~U ~1 ~ 9 ~g~ 23
Claims (23)
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A secondary pumping system for intravenous infusion of a secondary treatment fluid to a patient in cooperation with a primary treatment fluid administration set,. said primary set having a primary fluid source, a primary fluid control unit and a primary fluid line providing a primary fluid pathway from said primary fluid control unit, said secondary pumping system comprising:
a self-contained pumping unit having a secondary fluid reservoir and a secondary fluid pump integrated into a single compartment;
a secondary fluid outlet port in said pumping unit;
a secondary fluid line having two ends, a first end connected to said secondary fluid outlet port and a second end at a distance therefrom to form a secondary fluid pathway, said secondary fluid pathway mergable with said primary fluid pathway;
a means for restricting flow through said secondary fluid line;
a unitary housing containing said flow restricting means and said pumping unit;
a continuous fitting receiving said second end of secondary fluid line and further receiving said primary fluid line to merge said secondary fluid pathway and said primary fluid pathway; and a common fluid line providing a continuous common fluid pathway from said fitting to the patient.
a self-contained pumping unit having a secondary fluid reservoir and a secondary fluid pump integrated into a single compartment;
a secondary fluid outlet port in said pumping unit;
a secondary fluid line having two ends, a first end connected to said secondary fluid outlet port and a second end at a distance therefrom to form a secondary fluid pathway, said secondary fluid pathway mergable with said primary fluid pathway;
a means for restricting flow through said secondary fluid line;
a unitary housing containing said flow restricting means and said pumping unit;
a continuous fitting receiving said second end of secondary fluid line and further receiving said primary fluid line to merge said secondary fluid pathway and said primary fluid pathway; and a common fluid line providing a continuous common fluid pathway from said fitting to the patient.
2. A secondary pumping system as recited in claim 1 wherein said flow restricting means has an occluder extending from said housing to engage said secondary fluid line.
3. A secondary pumping system as recited in claim 1 wherein said unitary housing has a receptacle formed therein to removably retain said pumping unit.
4. A secondary pumping system as recited in claim 1 wherein said unitary housing is independently portable of said primary set.
S. A secondary pumping system as recited in claim 3 wherein said pumping unit is disposable.
6. A secondary pumping system as recited in claim 1 further comprising means for mounting said housing on a pole having said primary set mounted thereon.
7. A secondary pumping system as recited in claim 1 further comprising means for mounting said housing on said primary set.
8. A secondary pumping system as recited in claim 1 wherein a wall of said compartment is an elastomeric membrane.
9. A secondary pumping system as recited in claim 1 further comprising a plurality of said secondary fluid pumping units, a plurality of said flow restricting means, and a plurality of branch lines at said first end of said secondary fluid line, each of said branch lines connected to each said secondary fluid outlet port of each said secondary pumping unit and each of said branch lines engaged by one of said flow restricting means.
10. A secondary pumping system as recited in claim 1 further comprising a control assembly in electrical communication with said flow restricting means.
11. A secondary pumping system as recited in claim 9 further comprising a control assembly in electrical communication with said plurality of flow restricting means.
12. A secondary pumping system as recited in claim 1 wherein said compartment is prefillable and sealable with a predetermined volume of a secondary treatment fluid.
13. A secondary pumping system for intravenous infusion of a secondary treatment fluid to a patient in cooperation with a primary treatment fluid administration set, said primary set having a primary fluid source, a primary fluid control unit, and a primary fluid line providing a primary fluid pathway from said primary fluid control unit, said secondary pumping system comprising:
a self-contained pumping unit having a secondary fluid reservoir and a secondary fluid pumping chamber integral therewith;
a secondary fluid outlet port in said pumping unit;
and a secondary fluid line having two ends, a first end connected to said secondary fluid outlet port and a second end at a distance therefrom to form a secondary fluid pathway, said secondary fluid pathway mergable with said primary fluid pathway.
a self-contained pumping unit having a secondary fluid reservoir and a secondary fluid pumping chamber integral therewith;
a secondary fluid outlet port in said pumping unit;
and a secondary fluid line having two ends, a first end connected to said secondary fluid outlet port and a second end at a distance therefrom to form a secondary fluid pathway, said secondary fluid pathway mergable with said primary fluid pathway.
14. A secondary pumping system as recited in claim 13 further comprising:
a continuous fitting receiving said second end of secondary fluid line and further receiving said primary fluid line to merge said secondary fluid pathway and said primary fluid pathway; and a common fluid line providing a continuous common fluid pathway from said fitting to the patient.
a continuous fitting receiving said second end of secondary fluid line and further receiving said primary fluid line to merge said secondary fluid pathway and said primary fluid pathway; and a common fluid line providing a continuous common fluid pathway from said fitting to the patient.
15. A secondary pumping system as recited in claim 13 wherein said secondary fluid reservoir and said secondary pumping chamber define a substantially identical volume.
16. A secondary pumping system as recited in claim 15 wherein a wall of said secondary fluid reservoir and said secondary fluid pumping chamber comprises an elastomeric membrane.
17. A secondary pumping system as recited in claim 13 further comprising means for selectively restricting said secondary fluid line.
18. A method for introducing a primary treatment fluid and a secondary treatment fluid into a patient intravenously wherein said primary treatment fluid is initially conveyed via a primary set having a primary fluid source, a primary fluid control unit, and a primary fluid line providing a primary fluid pathway from said primary fluid control unit, said method comprising the steps of:
pumping said secondary treatment fluid from a secondary fluid reservoir into a secondary fluid line under the contractive force of an elastomeric membrane forming a wall of a secondary fluid pumping chamber integral with said secondary fluid reservoir;
displacing said secondary treatment fluid through said secondary fluid line to a fitting merging said secondary fluid line and said primary fluid line to form a common fluid line;
delivering said secondary treatment fluid intravenously to the patient across said common fluid line; and delivering said primary treatment fluid intravenously to the patient across said common fluid line.
pumping said secondary treatment fluid from a secondary fluid reservoir into a secondary fluid line under the contractive force of an elastomeric membrane forming a wall of a secondary fluid pumping chamber integral with said secondary fluid reservoir;
displacing said secondary treatment fluid through said secondary fluid line to a fitting merging said secondary fluid line and said primary fluid line to form a common fluid line;
delivering said secondary treatment fluid intravenously to the patient across said common fluid line; and delivering said primary treatment fluid intravenously to the patient across said common fluid line.
19. A method for introducing a primary treatment fluid and a secondary treatment fluid into a patient intravenously as recited in claim 18 further comprising delivering said primary treatment fluid and said secondary treatment fluid simultaneously to the patient across said common fluid line.
20. A method for introducing a primary treatment fluid and a secondary treatment fluid into a patient intravenously as recited in claim 18 further comprising delivering said primary treatment fluid and said secondary treatment fluid sequentially to the patient across said common fluid line.
21. A method for introducing a primary treatment fluid and a secondary treatment fluid into a patient intravenously as recited in claim 18 further comprising sequentially pumping said secondary treatment fluid from a plurality of said secondary fluid reservoirs into said secondary fluid line by means of a plurality of said secondary fluid pumping chambers.
22. A method for introducing a primary treatment fluid and a secondary treatment fluid into a patient intravenously as recited in claim 21 wherein said secondary treatment fluid is a plurality of different treatment fluids, each of said reservoirs containing one of said different treatment fluids.
23. A method for introducing a primary treatment fluid and a secondary treatment fluid into a patient intravenously as recited in claim 18 further comprising disposing of said secondary fluid pumping chamber and said secondary fluid reservoir integral therewith after emptying said secondary fluid reservoir of said secondary treatment fluid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/697,249 US5219331A (en) | 1991-05-07 | 1991-05-07 | Pumping system for intravenous administration of a secondary treatment fluid |
| US697,249 | 1991-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2062508A1 true CA2062508A1 (en) | 1992-11-08 |
Family
ID=24800411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002062508A Abandoned CA2062508A1 (en) | 1991-05-07 | 1992-03-09 | Pumping system for intravenous administration of a secondary treatment fluid |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5219331A (en) |
| AU (1) | AU1148992A (en) |
| CA (1) | CA2062508A1 (en) |
| GB (1) | GB2257364A (en) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5578005A (en) * | 1993-08-06 | 1996-11-26 | River Medical, Inc. | Apparatus and methods for multiple fluid infusion |
| USD385889S (en) * | 1996-09-11 | 1997-11-04 | C.R. Bard, Inc. | Pump housing |
| IL120654A (en) * | 1997-04-11 | 2001-08-08 | Nestle Sa | Administration of two liquids to a patient |
| USD409748S (en) * | 1997-08-22 | 1999-05-11 | Deka Products Limited Partnership | Disposable cassette for bedside pharmacy system |
| US6074366A (en) * | 1998-01-16 | 2000-06-13 | Tandem Medical Inc. | Medication delivery apparatus |
| US6726655B1 (en) | 1999-11-05 | 2004-04-27 | Tandem Medical | Medication delivery system |
| US8775196B2 (en) | 2002-01-29 | 2014-07-08 | Baxter International Inc. | System and method for notification and escalation of medical data |
| US10173008B2 (en) | 2002-01-29 | 2019-01-08 | Baxter International Inc. | System and method for communicating with a dialysis machine through a network |
| US8234128B2 (en) | 2002-04-30 | 2012-07-31 | Baxter International, Inc. | System and method for verifying medical device operational parameters |
| US6997905B2 (en) | 2002-06-14 | 2006-02-14 | Baxter International Inc. | Dual orientation display for a medical device |
| US7018361B2 (en) | 2002-06-14 | 2006-03-28 | Baxter International Inc. | Infusion pump |
| US10089443B2 (en) | 2012-05-15 | 2018-10-02 | Baxter International Inc. | Home medical device systems and methods for therapy prescription and tracking, servicing and inventory |
| US8057679B2 (en) | 2008-07-09 | 2011-11-15 | Baxter International Inc. | Dialysis system having trending and alert generation |
| US8554579B2 (en) | 2008-10-13 | 2013-10-08 | Fht, Inc. | Management, reporting and benchmarking of medication preparation |
| US8105269B2 (en) | 2008-10-24 | 2012-01-31 | Baxter International Inc. | In situ tubing measurements for infusion pumps |
| US8137083B2 (en) | 2009-03-11 | 2012-03-20 | Baxter International Inc. | Infusion pump actuators, system and method for controlling medical fluid flowrate |
| US8382447B2 (en) | 2009-12-31 | 2013-02-26 | Baxter International, Inc. | Shuttle pump with controlled geometry |
| US8567235B2 (en) | 2010-06-29 | 2013-10-29 | Baxter International Inc. | Tube measurement technique using linear actuator and pressure sensor |
| KR20150048816A (en) | 2012-08-31 | 2015-05-07 | 백스터 코포레이션 잉글우드 | Medication requisition fulfillment system and method |
| KR101974258B1 (en) | 2012-10-26 | 2019-04-30 | 백스터 코포레이션 잉글우드 | Improved image acquisition for medical dose preparation system |
| US9375079B2 (en) | 2012-10-26 | 2016-06-28 | Baxter Corporation Englewood | Work station for medical dose preparation system |
| JP2017525032A (en) | 2014-06-30 | 2017-08-31 | バクスター・コーポレーション・イングルウッドＢａｘｔｅｒ Ｃｏｒｐｏｒａｔｉｏｎ Ｅｎｇｌｅｗｏｏｄ | Managed medical information exchange |
| US11107574B2 (en) | 2014-09-30 | 2021-08-31 | Baxter Corporation Englewood | Management of medication preparation with formulary management |
| US11575673B2 (en) | 2014-09-30 | 2023-02-07 | Baxter Corporation Englewood | Central user management in a distributed healthcare information management system |
| WO2016090091A1 (en) | 2014-12-05 | 2016-06-09 | Baxter Corporation Englewood | Dose preparation data analytics |
| SG11201707114XA (en) | 2015-03-03 | 2017-09-28 | Baxter Corp Englewood | Pharmacy workflow management with integrated alerts |
| WO2016207206A1 (en) | 2015-06-25 | 2016-12-29 | Gambro Lundia Ab | Medical device system and method having a distributed database |
| KR102476516B1 (en) | 2016-12-21 | 2022-12-09 | 감브로 룬디아 아베 | A medical device system that includes an information technology infrastructure with secure cluster domains supporting external domains. |
| US11219715B2 (en) * | 2017-12-07 | 2022-01-11 | Ivenix, Inc. | Injecting a supplemental fluid in a conduit to deliver a primary fluid |
| CN108969834B (en) * | 2018-07-05 | 2021-05-07 | 青岛市妇女儿童医院（青岛市妇幼保健院、青岛市残疾儿童医疗康复中心、青岛市新生儿疾病筛查中心） | Dual-functional infusion support for department of pediatrics |
| CN109550107A (en) * | 2018-12-04 | 2019-04-02 | 深圳市永福康科技有限公司 | A kind of intelligence displacement transfusion system |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3756459A (en) * | 1971-01-12 | 1973-09-04 | Damon Corp | Method and apparatus for metering fluid utilizing pressure differentials |
| US4237881A (en) * | 1978-12-26 | 1980-12-09 | Anatros Corporation | Device for the intravenous or enteric infusion of liquids into the human body at a predetermined constant rate |
| DE3015777A1 (en) * | 1980-04-24 | 1981-10-29 | Ferring Arzneimittel Gmbh, 2300 Kiel | DEVICE FOR INTERMITTENT PULSATORIC APPLICATION OF LIQUID MEDICINAL PRODUCTS |
| US4563173A (en) * | 1983-04-19 | 1986-01-07 | National Biomedical Research Foundation | Pump-actuated sequencing valve and system |
| US4533347A (en) * | 1983-12-19 | 1985-08-06 | Warner-Lambert Company | Controller for a dual drug delivery system |
| DE3408331C2 (en) * | 1984-03-07 | 1986-06-12 | Fresenius AG, 6380 Bad Homburg | Pumping arrangement for medical purposes |
| US4608042A (en) * | 1985-09-25 | 1986-08-26 | Warner-Lambert Company | Apparatus for sequential infusion of medical solutions |
| US4741736A (en) * | 1986-12-10 | 1988-05-03 | I-Flow Corporation | Programmable infusion pump |
| US5000739A (en) * | 1988-07-12 | 1991-03-19 | Pinewood Medical, Inc. | Programmable infusion pump |
| US4946439A (en) * | 1988-08-15 | 1990-08-07 | Critikon, Inc. | Dual source parenteral infusion system with secondary infusion module |
| US4968301A (en) * | 1989-02-02 | 1990-11-06 | Imed Corporation | Disposable infusion device |
| US5078699A (en) * | 1989-09-22 | 1992-01-07 | Habley Medical Technology Corporation | Compact, easy to assemble, safety IV system |
| DE3939247C1 (en) * | 1989-11-28 | 1991-05-23 | Fresenius Ag, 6380 Bad Homburg, De | |
| US5090963A (en) * | 1990-10-19 | 1992-02-25 | Product Development (Z.G.S.) Ltd. | Electrochemically driven metering medicament dispenser |
-
1991
- 1991-05-07 US US07/697,249 patent/US5219331A/en not_active Expired - Lifetime
-
1992
- 1992-03-05 AU AU11489/92A patent/AU1148992A/en not_active Abandoned
- 1992-03-09 CA CA002062508A patent/CA2062508A1/en not_active Abandoned
- 1992-04-01 GB GB9207090A patent/GB2257364A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| US5219331A (en) | 1993-06-15 |
| GB2257364A (en) | 1993-01-13 |
| GB9207090D0 (en) | 1992-05-13 |
| AU1148992A (en) | 1992-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5219331A (en) | Pumping system for intravenous administration of a secondary treatment fluid | |
| US6669669B2 (en) | Laminated patient infusion device | |
| US5163909A (en) | Medical fluid delivery system | |
| US7018360B2 (en) | Flow restriction system and method for patient infusion device | |
| CA2091604C (en) | Fluid control device including automatic valve | |
| US5188603A (en) | Fluid infusion delivery system | |
| EP0354742B1 (en) | Portable infusion device assembly | |
| US7128727B2 (en) | Components and methods for patient infusion device | |
| EP0526623B1 (en) | Automatic in-line reconstitution system | |
| EP2319477B1 (en) | Device for filing a flexible reservoir container in a negative pressure chamber | |
| US4335835A (en) | Device for the intravenous or enteric infusion of liquids into the human body at a predetermined constant rate | |
| CN103230632B (en) | Displacement pump | |
| GB2103580A (en) | Liquid metering device and container for use therewith | |
| CA2068563A1 (en) | Method and apparatus for infusing medical solutions | |
| CN205031650U (en) | Low -cost fluid conveying equipment | |
| CA2241146A1 (en) | Infusion device with fill assembly | |
| US6391006B1 (en) | Fluid delivery apparatus with reservoir fill assembly | |
| US5171301A (en) | Multiple mini-pump infusion system | |
| CN1871042B (en) | Internal fluid connector | |
| JPH10248928A (en) | Medical fluid supply jig and priming device | |
| CN219251204U (en) | Medicine bottle adapter | |
| AU2002331913A1 (en) | Laminated patient infusion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |